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/* SPDX-License-Identifier: MIT */
/******************************************************************************
*
* Copyright 2019 (C) Alistair Francis <alistair.francis@wdc.com>
* Copyright 2021 (C) Bobby Eshleman <bobby.eshleman@gmail.com>
* Copyright 2023 (C) Vates
*
*/
#ifndef _ASM_RISCV_PROCESSOR_H
#define _ASM_RISCV_PROCESSOR_H
#ifndef __ASSEMBLY__
/* On stack VCPU state */
struct cpu_user_regs
{
unsigned long zero;
unsigned long ra;
unsigned long sp;
unsigned long gp;
unsigned long tp;
unsigned long t0;
unsigned long t1;
unsigned long t2;
unsigned long s0;
unsigned long s1;
unsigned long a0;
unsigned long a1;
unsigned long a2;
unsigned long a3;
unsigned long a4;
unsigned long a5;
unsigned long a6;
unsigned long a7;
unsigned long s2;
unsigned long s3;
unsigned long s4;
unsigned long s5;
unsigned long s6;
unsigned long s7;
unsigned long s8;
unsigned long s9;
unsigned long s10;
unsigned long s11;
unsigned long t3;
unsigned long t4;
unsigned long t5;
unsigned long t6;
unsigned long sepc;
unsigned long sstatus;
/* pointer to previous stack_cpu_regs */
unsigned long pregs;
};
static inline void wfi(void)
{
__asm__ __volatile__ ("wfi");
}
/*
* panic() isn't available at the moment so an infinite loop will be
* used temporarily.
* TODO: change it to panic()
*/
static inline void die(void)
{
for ( ;; )
wfi();
}
#endif /* __ASSEMBLY__ */
#endif /* _ASM_RISCV_PROCESSOR_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
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